Lost Library after download to new version  of Calibre
			 
			 
			
		
		
		
		
			
			Hi, really need some help here!  I have just upgraded to latest version (6.3) of the Calibre software - download went fine, rebooted PC opened Calbre - only to find my entire library is missing.  Seven years of uploading books into the Calibre library - all gone!  It is almost as though it was a clean install of the program rather than an update.  Can someone please help me?
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
	 |